Carta-patente expirada
#21.1
Patente extinta em 01/06/2009
12/26/2012
RPI 2190
Application data
Number
PI8907893Type
Filing
Publication
PCT
JP1989000550 The letters patent expired on 12/26/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
Shinagawa Refractories Co., Ltd.
JP
Inventors
K. Y. (pessoa física)
JP
M. O. (pessoa física)
JP
T. T. (pessoa física)
JP
T. O. (pessoa física)
JP
Y. S. (pessoa física)
JP
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 01/06/2009
12/26/2012
RPI 2190
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08/25/1998
RPI 1444
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01/13/1998
RPI 1412
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02/21/1996
RPI 1316
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10/27/1992
RPI 1143
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04/28/1992
RPI 1117
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